Use a microwave steamer, because it needs to be steamed with clear water.

I usually steam fish in the microwave oven:

It's best to marinate plaice or cod with ginger and salt for 10 minute, then put it in a special steamer for microwave oven, and lay it flat, not overlapping.

Put some water under the steamer.

The microwave oven is hot for four minutes. If the fish pieces are not easy to cook, consider extending them for another two minutes. )

When the fish pieces are cooked, put them on a plate, cut some shallots on the fish pieces, and empty the water in the cage.

Then light a gas stove and start an oil pan, preferably Lu Hua peanut oil. When the oil is hot, pour it on the onion foam and fish pieces. ...

That's great.